FXCM has almost 10 years of quality historical data and uses impressive liquidity pool, traders with 6-7 figures accounts use it. Please add FXCM historical data and trading capabilities to RE. I am absolutely sure that would lift RightEdge to new levels...

FXCM API's: http://fxcodebase.com/wiki/index.php/Choosing_Proper_SDK

If we go with FXCM's ForexConnect API, that is fully .NET compatible then info is here: http://fxcodebase.com/wiki/index.php/Category:ForexConnect